Production system of thermosetting powder coating

Abstract

The invention relates to a production system, in particular to a production system of a thermosetting powder coating. A pulverizer, a sheeter and an extruder in the production system are connected with a cooling water circulation system which is divided into three paths; first, the cooling water circulation system is connected with a waterway tube of a heat exchanger positioned at a water inlet of the pulverizer and a cooling water outlet of a water storage device is connected with a water inlet of the waterway tube of the heat exchanger; second, the cooling water circulation system is connected with the sheeter and the cooling water outlet of the water storage device is connected with a water inlet of sheeting rolls of the sheeter; and third, the cooling water circulation system is connected with the extruder, the cooling water outlet of the water storage device is connected with a water inlet of a water tank of a raw material feed inlet of the extruder, and a water outlet of the waterway tube of the heat exchanger, the water outlet of the sheeting rolls and a water outlet of the water tank are connected with a backwater water inlet of the water storage device. The production system can meet the production requirements of the thermosetting powder coating and can help recycle cooling water resources.

Description

technical field [0001] The invention relates to a production system, in particular to a production system of thermosetting powder coating. Background technique [0002] When producing thermosetting powder coatings, the raw materials are firstly mixed by a mixer, and then extruded at a high temperature of about 95-110°C by an extruder. For powder mill grinding, because it is a high-temperature material, the two pressing rollers must have cooling water below 10°C for continuous cooling, otherwise the two pressing sheets will stick to the rollers and damage the equipment. The grinding disc is produced at a speed of 7000 rpm, and the grinding disc must be air-cooled to cool down, otherwise the powder coating will solidify at high temperature, agglomerate and lock the grinding disc. In the prior art, tap water is used to cool the extruder The screw barrel and the tablet roller of the tablet press are allowed to flow without recycling, and the grinding disc of the mill is not air...

AI Technical Summary

Problems solved by technology

[0002] When producing thermosetting powder coatings, the raw materials are firstly mixed by a mixer, and then extruded at a high temperature of about 95-110°C by an extruder. For powder mill grinding, because it is a high-temperature material, the two pressing rollers must have cooling water below 10°C for continuous cooling, otherwise the two pressing sheets will stick to the rollers and damage the equipment. The grinding disc is produced at a speed of 7000 rpm, and the grinding disc must be air-cooled to cool down, otherwise the powder coating will solidify at high temperature, agglomerate and lock the grinding disc. In the prior art, tap water is used to cool the extruder The screw barrel and the tablet roller of the tablet press are allowed to flow without recycling, and the grinding disc of the mill is not air-cooled, but it still cannot meet the production requirements of thermosetting powder coatings, and it also causes a lot of waste of water resources

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